571-110-020-0

571-110-020-0

571-110-020-0

571-110-020-0

变频器运行时对PLC干扰应注意的问题

变频器运行时会对周围电气设备（包括P L C ）产生较强的电磁干扰，同时变频器主电路断路器等开关器件动作时也会影响PLC 的正常工作。为防止变频器运行时对PLC干扰，变频器与P L C 相连接时应该注意以下几点：

（1）对PLC 本身应按规定的接线标准和接地条件进行接地，而且应注意避免和变频器使用共同的接地线，且在接地时使二者尽可能分开。

（2）当电源电压波动大，谐波成分多时，为抑制谐波干扰，应在PLC 的电源模块及输入/ 输出模块的电源线上接入噪音滤波器或者隔离变压器。如果干扰仍严重，应考虑在变频器主回路中接入电抗器、变压器和噪音滤波器等措施。

（3）变频器和P L C 安装在同一电控柜时，应尽可能使与变频器有关的电缆和与PLC 有关的电缆分开安装，尤其是连接变频器的强电电缆与连接PLC 的弱电电缆更要分开安装。

4 结束语

变频器和P L C 间连接问题，涉及到数字量信号连接、模拟量信号连接以及避免干扰应注意的问题；在实际应用中，两者间的连接还涉及到用弱电信号控制强电的问题。因此，应引起重视，避免干扰造成变频器、PLC 的误动作；避免连接不当造成PLC 或变频器的损坏。

如果购买单位的在质保日期一年内发现有质量缺陷的，可以进行一个免费维修或更换。

控制板WF16LQ1M9   3

控制板WF16LQ1M2   1

PWF2415D-6W   3

2SP0115T2A0-17   2

WAVETEK 4201S   5

NZM2-250-XKC数量12

T3-3-8212/E数量5

M22-PVT45P数量10

M22-XGPV数量10

GPM-8310   1

S3700-450HFEF2         1

SJ700-450HFEF2 

SUCO 0166.411.031.043    10

EURODRIVE   1

CP1H-XA40DT1-D

CP1H-X40DT-D

CPM1A-20CDR-A-V1

CPM1A-20CDR-D

CQM1-CPU11-E

CP1l-EM30DR-D

CJ1W-ID211

CJ1W-OC201

CP1W-40EDR

CP1W-DA041

EVS9325-EP     1

EVS9326-EP     2

FX3G-40MT/DS   1

MDS-DH-CV-300

MDS-DH-CV-450

MDS-DH-CV-550

MDS-DH-SP-160

MDS-DH-SP-200

MDS-DH-V2-8040

MDS-DH-V2-8080

MDS-DH-V1-40

CMXE-205UUT-82  1

CM202   1 

RS204   1

塔基模块10 CM202   1

接口模块RS204 4x RS232/422/485   1

Schubert & Salzer 8049-4  1个

人機界面,UG221H-LE4 IN:24VDC,FUJI(停產)   12个

门开关 gs-71p10  20  基恩士

WS-PCM-06L700   2

2U1 3U1 NXP07506AOTOIWGA1B5B8D200   2

VAL-MS 320 ST   30

VAL-MS 350VF ST   30

VAL-MS 60 ST   30

F-MS 12ST   30

PT 3-HF-12DC-ST 14V   30

E84AVTWC2234WXO 22.0kW  3

2SP0115T2A0-17 1139   2

OPT-B1  5

ME-MAX 22.5 5DIO-1VAR DC440        3

Yamatake Honeywell SDC20 Temperature Controller

YAMATAKE-HONEYWELL FE5F-3MC6 Sensor 

YAMATAKE-HONEYWELL FE7C-RC6VG Sensor 

YAMATAKE-HONEYWELL FE7C-RPC6V Sensor 

YAMATAKE-HONEYWELL FE7C-TC6VGE Sensor 

YAMATAKE-HONEYWELL FE7C-TC6VGR Sensor 

YAMATAKE-HONEYWELL FL7M-8J6ND , 1 pcs , Sensor 

11-85U 1185U YAMATAKE HONEYWELL SWITCH

YAMATAKE HONEYWELL MICRO Y16 1LS1-J 1LS1J CNC

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J TOYODA FV45 VERT MILL B

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J TOYODA FV45 VERT MILL 

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J TOYODA FV45 VERT MILL C

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J TOYODA FV45 VERT MILL D

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J TOYODA FV45 VERT MILL E

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J TOYODA FV45 VERT MILL F

YAMATAKE HONEYWELL 5LS1-J LIMIT SWITCH 5LS1J TOYODA FV45 VERT MILL B

YAMATAKE HONEYWELL 5LS1-J LIMIT SWITCH 5LS1J TOYODA FV45 VERT MILL C

YAMATAKE HONEYWELL 5LS1-J LIMIT SWITCH 5LS1J TOYODA FV45 VERTICAL MILL

YAMATAKE HONEYWELL 5LS1-J LIMIT SWITCH 5LS1J TOYODA FV45 VERTICAL MILL B

YAMATAKE HONEYWELL MICRO SWITCH 9044E 5A-125

OKUMA LH-35N CNC MACHINE YAMATAKE HONEYWELL MICRO SWITCH MICROSWITCH SL1 Y132

OKUMA LH-35N CNC MACHINE YAMATAKE HONEYWELL MICROSWITCH MICRO SWITCH SL1 Y132

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OKUMA LH-35N CNC MACHINE SL1 Y132 YAMATAKE HONEYWELL MICRO SWITCH MICROSWITCH

YAMATAKE HONEYWELL MICRO SWITCH Y132 SL1 MORI SEIKI MV 45 40 SWITCH 

YAMATAKE HONEYWELL MICRO SWITCH Y132 SL1 MORI SEIKI MV 45 40 SWITCH

YAMATAKE HONEYWELL MICRO SWITCH Y132 SL1-P SWITCH MORI SEIKI MV 45 40 

YAMATAKE HONEYWELL MICRO SWITCH Y132 SL1-P SWITCH MORI SEIKI MV 45 40 PART 7

YAMATAKE HONEYWELL MICRO SWITCH Y132 SL1-P SWITCH MORI SEIKI MV 45 40 PART 10

YAMATAKE HONEYWELL 1LS1-J LIMIT SWITCH 1LS1J IKEGAI FX20N CNC LATHE 

YAMATAKE HONEYWELL MICRO SWITCH 1LS1-J 1LS1J CNC 3

YAMATAKE HONEYWELL MICRO SWITCH 1LS1-J 1LS1J CNC 1

YAMATAKE HONEYWELL MICRO Y16 1LS1-J 1LS1J CNC

YAMATAKE HONEYWELL MICRO Y16 1LS1-J 1LS1J CNC 

MICRO SWITCH YAMATAKE HONEYWELL KSS CB-2

(2) YAMATAKE HONEYWELL SWITCH 3LS1-J 3LS1J

YAMATAKE HONEYWELL SWITCH 3LS1-J 3LS1J

YAMATAKE HONEYWELL MICRO 1LS1-J SWITCH 1LS1J KITAMURA 1

MICRO YAMATAKE 1LS1-J 1LS1J OKUMA LB-15 CNC LATHE

YAMATAKE HONEYWELL MICRO 1LS1-J 1LS1J Y16 SWITCH CNC 

YAMATAKE HONEYWELL MICRO 1LS1-J 1LS1J Y16 SWITCH CNC 

YAMATAKE HONEYWELL FL-2E6-L5Y PROXIMITY SWITCH FL2E6L5Y MITSUBISHI M-V40A 

YAMATAKE HONEYWELL SL1-EK LIMIT SWITCH SL1EK MAZAK VQC-20/40B CNC

TAKISAWA MAC-V3 MICRO SWITCH YAMATAKE HONEYWELL SL1 Y132

TAKISAWA MAC-V3 CNC MACHINE MICRO SWITCH YAMATAKE HONEYWELL SL1 Y132 SL1Y132

FEF-PMD1-M Honeywell Microswitch Yamatake New In Box Photo Sensor FEFPMD1M 

FE7B-DD6-M Honeywell Microswitch Yamatake New In Box Photo Sensor FE7BDD6M

YAMATAKE HONEYWELL MICRO 1LS1-J LIMIT SWITCH 1LS1J OKUMA LR-15 CNC LATHE B

YAMATAKE HONEYWELL MICRO 1LS1-J LIMIT SWITCH 1LS1J OKUMA LR-15 CNC LATHE C

YAMATAKE-HONEYWELL MICRO 10A-125, 250 OR 480VAC 1LS1-J LIMIT SWITCH

YAMATAKE MICROSWITCH SL1-A 250VAC SL1A MAKINO MC40

YAMATAKE HONEYWELL MICRO SWITCH SL1 Y132 MICRO SWITCH SL1Y132 OKUMA LR-15

YAMATAKE HONEYWELL MICRO SWITCH 1LS1-J CNC HITACHI SEIKI HT-15 CNC B

YAMATAKE HONEYWELL MACHINE MICRO SWITCH 1LS1-J CNC HITACHI SEIKI HT-15 CNC B

YAMATAKE FE7C-DA6VP PHOTOELECTRIC SWITCH ! NEW !

MICRO YAMATAKE SWITCH 1LS1-J 10A 480VAC OKUMA LR15 5TH B

MICRO YAMATAKE SWITCH SL1-A 250VAC SL1A SWITCH OKUMA LR15 5TH

MICRO YAMATAKE SWITCH 1LS1-J 10A 480VAC OKUMA LR15 5TH C

MICRO YAMATAKE SWITCH 1LS1-J 10A 480VAC OKUMA LR15 5TH D 1LS1J 10A

NEW YAMATAKE HONEYWELL SL1 F 5-125A 250VAC 1/10HP JAPAN

OKUMA LR-15 YAMATAKE HONEYWELL MICRO SWITCH SL1-A2 250VAC SL1A2 NACHI

YAMATAKE HONEYWELL MICRO SWITCH 1LS1-J 1LS1J CNC

YAMATAKE HONEYWELL 1LS1-J MICRO LIMIT SWITCH 1lS1J

YAMATAKE HONEYWELL MICRO Y16 1LS1-J 1LS1J CNC SWITCH

YAMATAKE HONEYWELL MICRO SWITCH 1LS1-J 1LS1J CNC 2

YAMATAKE HONEYWELL 1LS1-J MICRO LIMIT SWITCH 1lS1J

YAMATAKE HONEYWELL 1LS1-J MICRO LIMIT SWITCH 1lS1J MAKINO CNC

Yamatake Honeywell Micro switch 10a-125 250 vac

YAMATAKE HONEYWELL MICRO SWITCH 0.1A 125VAC 0.1A 30VDC

2 YAMATAKE Photoelectric Sensors #HPA-R12 + ?

Yamatake Limit Switch SL1-B

*NEW* Yamatake SL1-F Limit Switch

Yamatake HPX-H2 HPXH2 HPX H2 Photoelectric Sensor

Yamatake SL1-HK Limit Switch

*NEW* Yamatake SL1-B Limit Switch

Yamatake Honeywell Dialapak Temperature Controller

Yamatake Limit Switch SL1-F

Yamatake Honeywell FE3-DB6 Photoelectric Sensor 12-24VDC

Yamatake Honeywell FE3-DB6 Photoelectric Sensor 12-24VDC

YAMATAKE HPF-D018 PHOTOELECTRIC FIBER OPTIC NEW !

YAMATAKE HPF-T003 PHOTOELECTRIC FIBER OPTIC NEW !

103SR13A-2 Honeywell Microswitch Yamatake New In Box Prox Sensor 103SR13A-2

YAMATAKE FE5V-TA6-K USPP FE5VTA6K

YAMATAKE J-HIC00 USPP JHIC00

Yamatake, Proximity Switch FL2-7A6S, New in bag.

YAMATAKE HONEYWELL SDC20 TEMPERATURE CONTROLLER

YAMATAKE-HONEYWELL SWITCH Y132 SL1-H 3-82 SL1H SL1 H /

YAMATAKE 14CE6-JE5-PD03 MINI MINIATURE PRE-LEADED VERTICAL TYPE ROLLER LIMIT SWI

YAMATAKE HPF-T004 FIBER CABLE NEW

MICRO SWITCH Honeywell YAMATAKE FL2-4E6H-L2 FL24E6HL2

YAMATAKE-HONEYWELL SWITCH Y132 SL1-H 6-82Y132 SL1-H 6-82 SL1H SL1 H / L

YAMATAKE FEF-PLT1 NSFP FEFPLT1

Yamatake HoneyWell Micro Switch FE7B-KA6G Photo Sensor

2pc Yamatake Door Interlock Switch LJS-PA792

Azbil Yamatake HPV-S12-020 HPV Vane Photoelectric Switch w/ Amplifier

YAMATAKE PROXIMITY SWITCH FL7M-10J6D-Z

Yamatake Honeywell Proximity Switch

HPX-AG AG00-2S Azbil Yamatake Photo Sensor Amplifier Switch Fiber Keyence Omron

38618 New-No Box, Yamatake 6PA-J40 LOT-8 Spring Lever Assembly

Yamatake Honeywell FL2-4A6H-L5 Proximity Sensor NEW

926AB2XM-A9T-L Honeywell Microswitch Yamatake New In Box Prox 926AB2XMA9TL 

AZBIL YAMATAKE PA5-4IBX1UK SENSOR CORD SET 4PIN NEW

FEF-PAD6-M Honeywell Microswitch Yamatake New In Box Photo Sensor FEFPAD6M 

YAMATAKE # HPJ-D21 MINIATURE PHOTO ELECTRIC SENSOR

YAMATAKE MICRO SWITCH SL1-DKFXG2 SL1DKFXG2 SL1 DKFXG2 /

YAMATAKE HONEYWELL 1LS1-J 1LS1J 1LS1 J 3-81 / 3-80

38600 New-No Box, Yamatake FL7M-7J6HD-CN05Z Proximity Sensor 12/24 VD 100mA

YAMATAKE-HONEYWELL MICRO LIMIT SWITCH SL1- SL1 SL1 Y93 Y 93 Y-93

(5) YAMATAKE HONEYWELL 1LS1-J MICRO LIMIT SWITCH 1lS1J

YAMATAKE CABLE PA5-4ISX5UK *NEW*

Yamatake Micro Honeywell Limit Switch, 5LS7-J, , WARRANTY

YAMATAKE-HONEYWELL DC 3-WIRE PROXIMITY SWITCH FL7M-1P5A6G